Improved machine for bending u m b rella



PATENT OFFICE.

FE tDlNAND Llillill, OF HOBOKEN, NEWY JERSEY.

IMPROVED MACHINE FOR BENDING UMBRELLA-RIBS.

Specifirnlion forming part of Leiters Intent No. 22,659, datt-d January15,1559.

To a-Z wit-071i, t may concern:

Be it known that I, FERDINAND Lin-uc, of Hoboken, in the county ofHudson and State of New Jersey, have invented, made, and applied to usecertain new and useful Improvements in Machinery for Bending Umbrella-Ribs and Similar Articles; and I do hereby declare that the following isa full, clear, and exact description of the construction and operationof the saine, reference being had to the annexed drawings, making partof this speciieation', wherein- Figure l is a plan of my machinecomplete. Fig. 2 is a side elevation. Fig. 3 is an end View. Fig. 4 is avertical longitudinal section showing the apparatus for bending theribs; and Fig. 5 is a ypartial section showing the feeding-pinchers andparts opposite to those in Fig. 4.

Similar marks of reference denote the same parts.

,serve like holes in the ribs for thejoints and for receiving thestretchers, it being distinctly understood that my invention does notrelate to the rib or spoke itself when bent, the saine being patented byHenry Kurth, of Brooklyn, New York, April 29, 1858.

The machinery I make use of for accomplishing the above-mentionedpurpose of bending or eoiling wire into loops for forming nmbrella-ribsmay be divided as follows: first, a reciprocating jaw or pincher whichfeeds or draws the wire,after it has been straightened, into themaehine,and then opens, and,leaving the wire to be operated on, turnsdown out of the way and is drawn back, then turned up, and again seizesthe wire; second, a shear having aY compound motion to come up and outoi the wire, and then move back out of the way; third, clamps `holdingthe wire near the middle and toward one end while the loops or eyes arebeing formed; fourth, mandrels and turning-stubs that bend or coil upthe wire to form 'a loop or eye near one end and in the middle part ofthe rib; fifth, a mandrel and turningstub which takes the end of thewire after it has been bent at the middle to form the loop land turnsthereon a loop or eye for the joint,

bywhich the end of the rib is attached. The parts then return to theirformer position and Y. the ribY drops.

The operation of bending the spokes or ribs being performed in the aboveorder by my maehine,the description will correspond thereto in its plan,although but one machine is used and that for producing one article.

In the drawings, a is a shaft sustained in vboxes b b, and rotated bycompetent power through the crank c and handle or crank-pin G, orotherwise.

A is the side frame carrying the mandrels, and Bis the other side frame,carrying the turning-'stubs and parts thereof.

First. On the side frame, A, isaV-slide, g', carrying the sliding blockg, on whicha short stud, 2, is attached, that carries the pinchers e e',and on this stud 2 the pinchers can turn down against the stop 7, in theposition show n in Fig. 2 by dotted lines, or be turned up against thestud 6, as seenin Fig. 5. The pinehersecare attached together by thescrew 5, and formed with horizon taljaws partially to the side, whichtake the wire, as shown by red lines in Figs. l and 5. The side e of thepinchers is longer than the side e', an d extends dow n ward through aguide-slot, 4, and has a pin or stud, 8, projecling therefrom toward theoutside of the maehine,wherc it receives one end ofthe link f, the otherend of which is provided with a slot, l, that receivesthe crank-pin c. 9is a spring tending to open thejaws, the saine be- -ing attached to theparte and acting on a pin,

8, on the parte', said pin 8 also preventing the jaws opening too far. disa guide through which the wire to forni the rib orspoke isled after ithas been straightened. The operation of these pinchers is as follows:The crank-pin c' being revolved in the direction of the arrows, the linkf draws the slide g along from the position in Fig. 2 to that of Fig. 5,the pinchers being outof the way ofthe other parts by the pull on thestud 3 acting to turn the pinchers down against the stop 7. So soon asthe crank c passes its center, the slide g has arrived at its extremeforward movement. As the link f is lifted, the pinchers e e are turnedup vertically above the shaft 2, as seeniu Fig. 5. The spring 9 keepingthe jaws open, they pass over the wire as the same projects from theguide d, and as soon as the pin c' takes against the end of the slot lthe pressure irst closes the jaws, grasping the Wire, and then the.further movementcauses the link f to face the slide g along to the otherend of the machine, drawing the necessary length of wire through theguide d. Other parts, hereinafter described, then comcup and holdthcwire, at which moment the crank c passes its eenter, the pressure isreleased, the spring9opens the jaws, droppingthc wire, the spring f',taking the stud 3, throws that forward, inclining the pinchcrs, as inFig. 2, and then the pin c', taking the end ofthe slot 1, draws theslideg back as before. The spring f might be dispensed with; but itmakes the pinchers throw backward and downward more quickly, instead ofthere being a pause while the pin o travels the length of the slot 1. Asimilar spring (to f) might be used at the other end to throw up thepinchers; but the same is not al ways required.

Second. i is a shear attached by a screw, 11, tothe bedpiece h. hf isthe other half ofthe shear, jointed to by the screw 12 and carrying thecutter yi. The end of the shear h projects as a lever toward the shafta, where a cam, h, acts on the same and gives a compound motion theretoas follows: The part 10 of the cam h, acting on the shear-lever h',moves said shear out of the way of the wire and pinchers e e', (seeFigs. l and 5,) said shear turning horizontally on the screw 11. Whenthe wire has been drawn through, as aforesaid, the end of h' being nolonger acted on by cam 10, the spring i, which serves to open the shearsas well as to draw the end of li' against the cam, on account of itsdiagonal position, moves the shears laterally, so that the jaws passabove and below the wire, and the cani h., now acting, throws down thecutter i" and separates the wire, aiter which the cani 10, againoperating, moves the shears laterally out of the way.

Third. The wire is laid along by the pinchers e e above the ledges 1314, Fig. 5, the turning-stubs and mandrels p p' are brought up, ashereinafter shown, which prevent the wire escaping. The clamping-leversk la are then brought down to hold said wire firmly by the followingmeans,while the turning operations, Fig. 4, are performed. The levers kk' are on fulcrulns in the blocks k" k. Their outer ends are connectedby links 15 15 to bent levers 16 16, the ends of which are connected tothe sliding bar L in guides Z. Z3 is a spring acting to slide said bar llengthwise and force up the outer end of the levers It k' and cause theinner ones to clamp the wire. Z is a cam on the main shaft, which,acting against the end of the barl and being properly shaped and timed,raises the inner ends ofthe levers 7c k', while the finished spoke dropsout and the wire is laid by the pinchers on the ledges 13 and 14 andbeneath the ends of said levers k k', as aforesaid.

Fourth. To coil or bend up the wire at the middle and one end to formthe eyes or loops, I cause the motion of the bar Z, aforesaid, toproject and retract the inandrels z z, that are fixed to the slides mm',and determine the size of the loop or eye formed in the wire rib. 18 18are levers on the fulerums 19 19, attached at the upper ends to saidslides m m in the blocks k and k3. The lower ends of these levers 18 18set in diagonal jaws or slots 20 20 on the bar l, so that as the bar lis moved by the spring l3 to clamp the wire by the levers k It', themandrels z z are projected out of the blocks 7a2 k, so as to be ready tohave the wire bent around the same by the means next described. n is acani on the shaft a, which acts on the slide-bar u', from which links 2222 connect to cranks 23 23 on the lower ends of vertical shafts u* n. 2424 are arms on the upper ends of the shafts In, connected by links 25 25to the stocks o o, that move in V-slides o o', and carry the turningshafts p p and stubs ma', and 2l is a spring acting to slide the bar ntoward the cani n3. The operation of this partis, that the cam n, beingproperly shaped and timed, moves from and releases the slide a immediately aft-er the pinchers e e have passed along,

carrying the wire, as aforesaid, so that the spring 21, acting throughsaid bar n, cranks 23 and 24, links 22 and 25, and the shafts n,projects the stocks o, so that the ends of the shafts p p' come up andhold said wire, the turningstubs :c being above the wire, as seen inFig. 4, and the ends of the shafts p p being provided with holes intowhich the mandrels z z pass when projected, as before set forth. Theshafts p p' are revolved while pressed against the wire by means of thegears r and 7', there being three gears r and two gears 1', so that onemovement of the rack r will turn said shafts 1J p in oppositedirections, which causes the stubs x :c to turn or twist the wire,around in the manner represented by the red lines and arrows, Fig. 4,the inner faces of the blocks k2 and k being formed as an incline fromthe ledges 13 and 14, so that the wire, when turned into an eye, iscoiled or laid double at the back ofthe eye, the spring 21 allowing theshafts p p to move slightly back as the turning progresses. It will beseen that the shaft p acts near the end to forni the eye to which theedge of the umbrella-cover is attached, and that the shaft p and itsstub sweeps the wire around, as shown in Fig. 4, to form the eye nearthe middle, and causes the moving end of the wire to pass down betweenthe jaws 32, beneath an offset and over a mandrel on which the wire hasan eye bent up at the end thereof, as heretofore described. The rack i'receives its motion from a crank, q, at the end ofthe shaft a, with itspin acting in a slot, 27, of the eonnectingrod q', that is attached at26 to the said slide r, the object Lof the slot 27 being to allow apause after the turning operation, before described, for the end to havean eye turned therein, and for the cam n to force along the slide-bar nand slide the stocks o o and shafts p p away from the finished rib, whenthe crank-pin, taking the other end of the slot 27, slides the rack r toits former position, turning back the shafts p jp', ready to be againprojected and act upon another wire, as before spccitied.

Fifth. The rack u, similar to the rack r, also moves in a V-recess inthe side B of the bed,

and acts to rotate the shaft p2 and its stub 1r' through the gears n',and said stub fr bends the end ofthe wire into an eye, (see retl lines,Fig. 4,) in the saine manner as before detailed relative to the shaflspp'. llhc endwise inotion is given to the shalt pi and stock s'in theslides s" by 111cans o1' thelink 31, arin 30, shaft s, crank 2t), andlink 28, to the sliding bar n and spring 41, the eain n2 being so formedand positioned that the stock s' and turning shalt p come up and takethe end of thc wire as it sweeps around and arrives at the jaws 32, (seeFig. 4,) and simultaneously the inandrel e is projected by a linlt, s,from the arn1 3() to a lever, 34, taking the slide 1112111 the block k,at the c1111 of which slide mf is the said inandrel Ifroni the pin ofthecrank q is a second crank, t, set at such an angle to the former thatthe pin if, taking the end o1' the slot 35 in the connecting-rod ti,gives the sliding 1110- tion to thc raclc n, and rotates the shaft p2and its stub as soon as the said shaft p is pressed against the wire, asaforesaid, and when the eye has been bent on the end,as beforedescribed, the ealn nL forces the shaft p" back, drawing out theinandrel a', and the spoke or rib falls away completed, and the pin t',taking the other end ofthe slot 8.3, turns the shaft p back to itsforiner position. It will 11e evident that by the arrangement of thecranks q and t, in connection with the slots 27 and 35 in theeonnecting-rods q and ti, the operations o1' turning the shafts p and p2are performed successively, so as to act on the wire first to forni themiddle eye and then the end eye or loop.

Having thus described the construction and operation ofthe successiveparts, I will briet-` ly recapitulate the various operations: Thepinchers seize and draw through the wire, the shafts p p' coine up, thelevers h It" clamp the wire, the pinchers open, turn down, and are drawnback out of the way, the center and end eyes are turned by the stubs :rc around the lnandrcls z c as they are projected, the shaft p2 comes up,the mandrel z is projected, and the end eye or loop is turned, theshafts p, p', and p2 move back successively, and the inandrels s .fr c'are withdrawn and the finished rib or spoke drops away complete. Thepinchers e c' by this ti 111e have been turned up vertically and againseize the wire, the otherparts have resunicd their former positions, andthe motions are performed as before.

I do not claiin a mandrel around which the wire is bent by a revolvingstub, as such niandrei has been aliixed to the shaft carrying therevolving` stub. In that case, however, diffe culty existed in removingthe spoke or rib, when bent, from off the said mandrel; but by mymachine, the mandrels and bending-stubs withdrawing from each other andthe 1nandrets pulling ont of the holes or eyes, this difficulty isavoided.

That I claim as my invention, and desire to secure by Letters Patent,is-

'1. A reciprocating pincher taking the wire `fro111 a fixed and thawingthe saine through the machine, dropping froni said wire, and thenreturning belowto its previous position, so as to 1111 out of the way ofthe bending or ceiling of the wire into eyes or loops, as set forth.

2. Attaching said pinchers on a traveling` carriage by one side thereof,while the power for sliding said pinchers lengthwise of the machine isapplied to the other jaw, whereby the clamping and releasing ofthe wireare e1'- fccted by the act o1' ineving said pinchers, as set forth.

3. Attaching one end of said pinchers on a stud or shaft, in combinationwith the stops (i and 7, spring E), and slotted connecting -link j',whereby the sliding, clamping, depressing, and elevating motions aregiven the pinchcrs bythe reciprocations ofsaid rod j', as set forth.

et. The shear 1T', receiving the compound inotion set forth fro111 thecanis l1 and 10, in the 111anne1` and for the purpose specified.

5. The clamping-levers k lr', in combination with the ledges 13 11 andshafts p p', that press against and hold the Wire while the loops arebeing formed, as set forth.

6. The niandrels, in combination with the turning shafts and stubs, whenthe said inandrels are projected froni the blocks or their equivalents,for the wire to bc bent around the same to forn1 the loops or eyes inthe spokes or ribs, and withdrawn from said eyes when the saine havebeen bent, substantially as set forth.

7. The arrangement of the sliding barl and the connections therefrom tothe clampinglevers k 711 and slides n1 n1',wl1ercby thc clamps andinandreis are simultaneously actuated, as set forth.

8. The sliding stocks o 0, carrying the shafts p and turning stubs forallowing the withdrawal of said stubs out ofthe way of the travelingpinchers, substantially as set forth, and, in combination therewith, thebar N and connections thcrefroni to said stocks o o, for communicatingend wise motion to said stocks, for the purpose and as specified.

9. The sliding n'iandrel s and turning shaft p2, connected as set forth,in combination with the jaws 82, or their equivalents, for turning theeye or loop in the end of the spoke or rib, as described and shown.

10. The arrangement of the cranks q and z and slotted connecting-rods qt, for commu nicating niotion successively to the slides r and `u' andfroni the same to the tnrning-stubs or loop-farmers, as set forth.

In witness whereof I have hereunto set my signature this 17th day ofDecember, 1858.

LEMUEL XV. SERRELL, THoMAs G. HAROLD.

